Open Access

ARTICLE

Analysis of the Weight Loss of High Temperature Cement Slurry

by Kunhong Lv, Zhiqiang Huang^*, Xingjie Ling, Xueqin Xia

College of Petroleum Engineering, Yangtze University, Wuhan, 430199, China

* Corresponding Author: Zhiqiang Huang. Email:

(This article belongs to the Special Issue: Meshless, Mesh-Based and Mesh-Reduction Methods Based Analysis of Fluid Flow in Porous Media)

Fluid Dynamics & Materials Processing 2022, 18(5), 1307-1318. https://doi.org/10.32604/fdmp.2022.020294

Received 15 November 2021; Accepted 15 March 2022; Issue published 27 May 2022

Abstract

The weight loss of cement slurry is the main cause of early annular air channeling and accurate experimental evaluation of the law of loss change is the key to achieve compression stability and prevent this undesired phenomenon. Typically, tests on the pressure loss of cement slurry are carried out for temperature smaller than 120°C, and this condition cannot simulate effectively the situation occurring in high temperature wells. For this reason, in this study a series of experimental tests have been conducted considering a larger range of temperatures, different retarders and fluid loss additives. The results show that with an increase in the temperature, the weight loss curve of cement slurry changes from a “two-stage” to a “three-stage” behavior, and the risk of channeling increases accordingly. On increasing the amount of retarder and fluid loss additive, the transition time of cement slurry displays a non-monotonic behavior (it decreases first and then increases). It is found that the optimized retarder and fluid loss additive dosage are 0.2% and 2.5%, respectively.

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Keywords

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